Safety razor



Feb- 24, 1:942. c. GUERTIN SAFETY RAZOR AFiled Aug. 25, 1940 Patented Feb. 24, 1942 UlfvliraoY STATE-s,

PATENT oFFicE N 128274,14). SAFETY 11A-zon,

Louisl Guertin, Worcester,.Mass. Application AllgfllstZS, 1940', Serial No: 35359095 1.4.,Claims: v I( Cl.` 30-60) The present invention relates to a new and improved safety razor and". blade therefor.

Objects ofv the invention include the provision of: a safety razor bladev of' new andy improved:

v design; the provision of a razor having a' con-- struction such as to permit thel blade to be setin andtaken out in aquick and simple manner; the provision of a razor having a spring hinged top blade clamping member so arranged that when ther clamp actuating. means isreleased, the

clamping member'wll automatically rise slightlyfrom the blade and thus unclamp the same andv render itV safel and easy to remove the: blade; the provision of a spring hinged blade clamping member as' above, in which the`=spring will seatA4 the clamping member on the blade v upon almere snap' of the' spring; andi the provision.. of anew looking in thefdirection of arrow 2"' in Fig.' 1i;

Fig. 3 isa top plan viewof thesame:

Fig: 4 isa top plan withthe top blade clamp- A -3@iback'sl`ightl'yon the member 32, and when reing' member open;

Fig. 5 is a section on line 5"-5'l of'Fi'g. 4;

Fig. 6' is a top plan view'of' the blade;

Fig. 7 isv a' partial view of one'l end of the -bot'- tom blade clamping member; Fig. 8 is a detail View of the top' blade clamp andits spring;

Fig. 9 is a sectional viewfwsh'owin'g av modified? blade clamp actuator; and l Fig. 10 is a' sectional: viewshowing' the1 bladeV clamping members' in' released condition.

Referring to the drawing in'. detail, numeral IIl` indicates a tubular handle which may be' secured to or integral with awbottom blade clamping member I2 having thel usual guard'teeth I4". A rod I6 extends thru the handle in asliding:maml ner and is provided vwith a 'xed abutment' mem'- ber' I8 extending transversely of theirod I6?. A

- pair vof tits extend downwardly fromv the* underside of the abutment for a purpose tobe explained.

The lower end of rod I6 is threaded to engage? a nut22 asshown in Fig; 1, and this nut is pro-1 vided with a reducedbarrel 24 to slidingly and rotatably t in the handle I0. An annular shoulder 26 is formed on the nut at the -base of the 55 thereof.

barrel to' provide an abutmentfagainst' the op'en end' ofA the handle'. It will be' observed thatla restricted portion 28 of the handle and barrel 2'4 combine to locaterod I6, and that the latter 2,;m'ay be rotated and' movedl axially by the nut used as a handle. Of course, the nut 22 cannot be moved upon theJ threads on handle I6 unless something-retains the rod or abutment I8v against turning, and in this`-` case, the nut can be turned lOaiupto draw the' rod down; or it can be loosened to e'ITectually lengthenTr the rod.

Turning to Fig. El, it ywillbe seen that the bottom clamping member"|`2-fhas'secured to its under sidel adjacent* one end, a thin leaf spring 30.

152;.'1'his spring is arranged to lie as straight as is compatible with the transversely curved underside'of` the member I2, but in any case the spring tends to lie at restA in up position, so that if'it is bent downwards at' itsfree" end, it will' oppose 20""suclr`r action: A top' blade clamping member 32 ist provided with av pair ofv depending lugsy 34, suclr lugs` being' apertured to receive laterally extending projections 361cm the free end of'spring 30. By this means the top clamping member is 5" hinged'to-the-bottom member I 2, sovthat with the formeri'n closed, but not clamped, position, thev spring willcause-it tubev spaced from the bottom member. Also', with the parts in position as shown' in Fig. 5', thenger can be used to draw leased; the resilience of'thespring will cause this member tosnap I over to closed position.

y Slots 3'8 are provided in the end of" bottom member I2 for the guiding reception of the lugs i-m34 to render the parts more rigid and to form' lqrabut'ment by'meansl of.` tits 20.

'Illia-razorbladefis shown in Fig. 6, and this blade comprises a pair' of narrow cutting members-144, connected at their ends by strips 46, slots 48`correspondf with slots 3`8 in the bottom member, and lugs 34 alsof pass into the blade slots when the-razoris closedso that the blade will belbcked7 in the"de'sire'd correct position. There isf also au pair of central interior slots 5D and thefbladeisfotherwise shaped to iit the element V50 52'orr the bottom member,` which has extensions 54lt'obe-'r'ecei'ved" in slotsI 5U; Itlfwill be seen that i slots 48, 50, and element52will'ensure correct location-of the blade, and that there is therefore practically no chance for the wrong positioning If the blade is in the wrong position,

the top member 32 cannot close, due to lugs 34.

The top member 32 is provided with a raised rim 56, the sides 58 of which will pinch down on the members 44 of the blade to securely clamp the same. Depressions 60 are adapted to receive the ends of projections 54 to allow the end portions 62 of the rim to clamp the end strips 46 of the blade. always correctly positioned, will be positively clamped about its entire periphery.

In the operation of the device, the blade is set about the member 52, with projections 54 in slots 50, the top member 32 is snapped up in the direction of the arrow in Fig. 5 to cover the blade, with lugs 34 entering slots 38, 48; the rod I6 is turned to seat tits 20 in depressions 42, and the nut 22 is then given a turn or two to firmly clamp the parts in place against the action of spring 30. When thru shaving, the operator backs off on the nut just enough to release the abutment I8 from the top member 32, and this will allow the spring to raise the top member-and loosen it from the blade; so that the latter can be easily removed without the necessity of manually-l orcing the top member off the bottom member and off the blade.

Fig. 9 shows a modified handle arrangement in which the rod 66 is threaded to nut 68 but is fixed thereto by a set screw 16. A coil spring 12 continually urges the rod to clamping position wherein the abutment will engage the top clamping member. To release, it is merely necessary to press nut 68 against the spring tension, and the latter can be adjusted by backing off on the set screw, turning the nut up on the rod, and again tightening the screw.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. A safety razor comprising a pair of blade clamping members, a spring attached to one member, and the other member being pivoted on said spring. 5

2. A safety razor as recited in claim l, in which the spring is effective to normally urge the said other member from the said onemember.

3. A safety razor comprising lower and upper blade clamping members, to said lower member, said upper memberhaving a lug, said lug being pivoted to said spring.

4. A safety razor as recited in claim 3 in which the spring is effective to normally urge said upa leaf spring attached Hence the blade, besides being per member from said lower member at the lug area. v

5. A safety razor comprising a pair of blade clamping members, means pivotally connecting said members, said means comprising a leaf spring on one member and a lug on the other member, said lug being hinged on said spring.

6. A safety razor comprising a pair of blade clamping members, a leaf spring attached at one end to one of said members, a lug on the other member, said lug being pivoted to said spring at the latters free end.

7. A safety razor comprising a handle, a lower blade clamping member fixed to said handle, an upper blade clamping member, resilient means to normally urge said members apart, said'upper member being pivotally mounted on said means, and means movable in'said` handle to force said members together.

8. A safety razor as recited in claim 7 in which the last mentioned means comprises a rod axially movable in said handle, an abutment on said rod for engagement with said upper blade clamping member, and means eiective to move said rod in a direction to draw said upper member into clamping engagement with said lower member.

9. A safety razor as recited in claim 7 in which the last mentioned means comprises a rod axially movable in said handle, an abutment on said rod for engagement with said upper blade clamping member, and screw means to move said rod to blade clamping position of said members.

l0. A safety razor as recited in claim 7 in which said last mentioned means comprises a movable rod, an abutment on said rod for engagement with said upper member, and spring means to move said rod to blade clamping position of said members.

l1. In a safety razor, the combination of a pair of blade clamping members, pivot means for said members comprising a pair of depending lugs on one member and a hinge element on the other member cooperating with said lugs;

with a razor blade adapted to be secured between said blade clamping members, and guide slots in said blade to receive said lugs in cooperative relation therewith, whereby said bllade will be correctly positioned between said blade clamping pair of pivoted blade clamping members, a raisedv element centrally located on one member,A a peripheral rim on the other member, said element extending into the rim when the razor is closed, thus forming a peripheral clamping surface at said rim, and guide means for said members during their closing action; with a razor blade having a narrow peripheral rim and a central aperture so as to fit over said raised element, said blade rim being adapted to be clamped by the rim on said other element, and means on said blade cooperating with said guide means.

14. A razor blade comprising Va body having a large generally rectangular aperture centrally thereof, said aperture forming narrow cutting members at the longitudinal edges of said bodyv tral interior locating slot, said guide slots being adapted to guide blade clamping elements of a` safety razor in their closing movement and said locating slot being effective to cooperate with a lug on one blade clamping member for initialY positioning thereon of said blade, whereby said blade may be located on said one member and l thereby act as a part thereof so that said guiding i 0 slots may effectively carry out their guiding function.

Louis c. GUER'I'IN. 

